remove collab from drawing

docs/src/demos/Examples/Drawing/index.vue

@@ -5,12 +5,9 @@
 </template>
 
 <script>
-import Collaboration from '@tiptap/extension-collaboration'
 import { Editor, EditorContent } from '@tiptap/vue-starter-kit'
 import Document from '@tiptap/extension-document'
 import Text from '@tiptap/extension-text'
-import * as Y from 'yjs'
-import { WebsocketProvider } from 'y-websocket'
 import Paper from './Paper.js'
 
 export default {
@@ -26,17 +23,11 @@ export default {
   },
 
   mounted() {
-    const ydoc = new Y.Doc()
-    this.provider = new WebsocketProvider('wss://websocket.tiptap.dev', 'tiptap-draw-example', ydoc)
-
     this.editor = new Editor({
       extensions: [
         Document.extend({
           content: 'paper',
         }),
-        Collaboration.configure({
-          document: ydoc,
-        }),
         Text,
         Paper,
       ],